Protector.



J. ZwILLINu..

` Pno'rnc'rox. APPLIUATIOI FILED KAY 8. 10.16.`

1,106,91 1 Patented A118111'. 19M

gallura I UNITED s'ra'rEsv PATENT OFFICE.

JOSEPHZWILLJNG, OF NEW. YORK,A N. Y., ASSIGNOB. TO WESTERN ELECTRIC COMPANY,

i i 0F NEW YORK, N. Y., A CORPORATION OF ILLINOIS.

Specicatlon of Letters Patent.

Patented Aug. 11, 1914.

Application tiled May 8, 1914. Serial Np. 837,201.

ratus for electrical currents, and more pai'- l ticularlv to a combined apparatus adapted to protect a circuit against instantaneoi-is high pressure discharges, such as lightning.

lhe olject of this invention is to provide ved v'method of mounting such :ip`

an impri paratus in a convenient iiiaiiiiei' with all'iof the parts well insulated and protected against` moisture. 1 i

ln accordance with this vinvention the appai'aths is mounted between circuit-connecting springsl or plates Secured to 'a common base. .l One feature ofthe invention relates to the means for supporting the ciremt-connecting springs or plates in the base vin such a manner that theyl may be protected b v-a moisture-proof covering beneath the base.

Another feature of the invention/is the form of spring or plate 4provided for pre venting the. mois-tureproof covering from flowing through to the top of the base and'- covering the contacting portions. of the Y springs or plates.

The invention is'illustrated in thel accompanying drawings in whichv Figure 1 is a plan of a protector embodying theinvention;`Fig. Q'isa sectional View taken on the line Z-Qg'Fig. 3 is a perspective v view of the 'circuit-connecting springs or members Fig. 4 is an enlarged sectional view Ltaken onthe line 1 4; Fig.- 5 is a perspective view of the ground-connecting mem` ber or plate.

The protectoris comprised of 'a base 1., having formed integral therewith an annie l'arboss 3, .which-has threads formed' upon its inner surface' adapted to regis'ter `with. those upon a" scre w cap Q5. 'Recesses are iliade in the bottomsurface of the "base it for thevpurpose of countelrsinkng the cire'- ,c'ut-connectlng' spring-members or plates.

The circuiti-'connectin spring members .comprise a plurality o resilient members 5. 5, each havi a vertical body-portion 6, a horizontal part-inn i, and a hentfoveir portion 8 as is illustrated in detail by. Fig..

3. The bent-over portion S is otl greaterl cup or vflange Sl. The cup or flange 9 is of sutlicient depth so as' to conceal and thereby protect the horizontal portion T when the resilient member 1' is mounted in the base 1. The vertical portion t' is curved in a manner substantiall)Y as shown. for the purpose ot' causing said portion to engage or grip the carbon blocks 19. 151. A hole l() is bored through the portions i' and S. which permits the insertion of the bolt of a binding post l1S when resilient member 5 is mounted in the base 1.

A ground member or plate l1 carries` an extension member 12. which lies in a plane at right angles to that of said ground plate 11. Lugs Il. 11.-formed upon the vertical edges of the ground plate 11. function as a guide for the carbon blocks 1), 19. and a lug v15, formed at the center near the base .of said ground plate 11. functions as a stop orsupport tolimit the'downward movement ol said carbon blocks 19, 1S). rl`he groundv plate 11 is positioned intermediate the ends of extension ineii'ibei' 1Q, so that said member 12 is divided into unequal lengths 16, 17. The short length lt functions to cover aperturefil when theA plate 11 is mounted in base l by means otl the bolt of binding post 1S passing through hole 13 made in the long length 1T.

. The resilient members 6, (3 and the ground plate 1l. are admitted into the protector chamber through apertures Q0, i2() and 91 made in the base 1. 'hen the protector is assembled` the ground plate 11 is positioned intermediate the resilient members 5, 5, which are mounted opposing each other. The tension of resilient members 5, 5 is toward the ground plate 11, which provides a means for hol'ding the carbon blocks 1t. 1S) against said ground plate 11` and the .lugs 11. 1l and 15 p'revent the dislocation of said carbon blocks 1f)7 19 when placed in position. The flange 9 on the resilient membersl 5, 5 and the short length 113 of extension meinber 12 of the ground plate 1l, completely cover the apertures '20, Q0 and 21,' respectively, so that when the recesses formed in the base 1 are filled with some moistnreproof substance, for the purpose of excluding moisture from the protector chamber, non! ,a plied to they portion off-said springsfmf ates uponone side of said base, and means ihr preventing said compound spreading over the"`portionof said springs or plates irpon the opposite sides of said base.

*2., In aprotective apparatus, a base hav- L; ngzopenings therethrough and recessed in one'pface thereof, contact springs or plates extending through said openings, and means onsaid contact springs or plates fitting snuglninto said recesses and covering said openings.

3. In a rotective apparatus, a, supportin provided with openings therethroug vand'recesses upon one face, and supporting springs or plates for said protective appara- "'Qtusextending through' said openings, said supporting springs or plates being provided with a bent-over portion adapted to tit into said recesses and cover said openings.

In a protective apparatus, a support-ing Vbase provided with openings therethrough and recesses upon one face, and supporting springs or plates for said protective apparatus extending through said openings, said supporting springs or plates being provided with a bent-over portion, said bent-over por- .tion having its edge formed into -a lip or ange'which is ada ted to t into vsaid re- 'cesses and cover sai openings.

5.A In a protective apparatus, a supporting Ybase provided with openings therethrough and recesses upon one face,-and supporting springs or plates for said protective apparatus extending through said. openings, said supporting springs or-`plates being provided with a bent-over portion, said bent-over portion having a greater width than the bodyportion of said supporting springs or plates, and having the part adjacent to the edge of said bent-over portion forlried into a lip or flange adapted to t into said recesses and cover said openings.`

InY witness whereof, I hereunto subscribe my name this 6th day of May, A. D. 1914.

JOSEPH ZWILLING.

Witnesses: l

NANON E. TU'rl-uLL, KATHERINE L. STAHL. 

